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Homepage>CSN P CEN/TS 16498 - Paints and varnishes - Coating materials and coating systems for exterior wood - Assessment of tannin staining
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Released: 2013
CSN P CEN/TS 16498 - Paints and varnishes - Coating materials and coating systems for exterior wood - Assessment of tannin staining

CSN P CEN/TS 16498

Paints and varnishes - Coating materials and coating systems for exterior wood - Assessment of tannin staining

CURRENCY
LANGUAGE
English
Number of Standard:CSN P CEN/TS 16498
Number of Standard:ILNAS P CEN/TS 16498
Category:672015
Released:2013
DESCRIPTION

P CEN/TS 16498


P CEN/TS 16498 Paints and varnishes - Coating materials and coating systems for exterior wood - Assessment of tannin staining - This Technical Specification specifies a test method for assessing the discoloration of coatings on wood by tannin staining due to wood extractives. The method uses an extract from Merbau wood as an indicator. Bleeding of wood extractives is assessed at two specified stages firstly after coating application and secondly after cyclic climate exposure. A qualification of colour differences that can be attributed to three different causes, bleeding of extractives, low opacity of the coating film or general yellowing in climate exposure, is included. This document does not specify acceptance values for colour differences that can be tolerated and it is not applicable to staining caused by knots for which there is a different test method (e. g. CEN/TS 16359).

Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.